Altimeter GPS is a comprehensive app designed to maximize your iPhone's sensor capabilities for wilderness adventures and survival scenarios. This travel and navigation tool offers precise altitude readings through its innovative "Pure Altitude Algorithm," utilizing GPS, Aster, or barometric data. Unlike other apps, Altimeter GPS operates offline, making it reliable in remote locations. Choose between meters-km/h or feet-mph for altitude and speed measurements without requiring an internet connection. The app also features a barometer altitude measurement for iPhone 6 and 6 Plus, a pedometer/step counter utilizing the M7 co-processor, a sunrise/sunset calculator, position finder, flashlight, compass, multiple maps, chronometer, and always-on location display.